JP3182474U - Fire alarm - Google Patents

Abstract

[PROBLEMS] To provide a fire alarm that has a simple structure and is inexpensive in cost, and is arranged at or near a place where there is a possibility of a fire, and can detect and notify a local fire. provide.
A fire alarm device 10 is fixed to a base 12 with a detonator signal portion 14 having a conducting wire 20 that is ignited by a fire and burns explosively to generate a plosive sound, and the outside thereof is sealed. A cover 16 arranged so as to be covered is provided, and fixed to a place where a fire is monitored by an attachment fixing portion 18 provided behind the base 12. When the heat of the fire is received, fireworks, for example, firecracker structure fireworks constituting the detonator signal part 14 are ignited and ruptured by the conducting wire 20, and the occurrence of the fire is notified by a loud burst sound.
[Selection] Figure 1

Description

The present invention relates to a fire alarm that detects and notifies a fire by placing it in a place or device where a fire may occur or in the vicinity thereof.

  Conventionally, home fire alarms have been installed near the center of the ceiling of the room or near the ceiling of the wall to detect a fire in the entire room and detect temperature or smoke due to the thermal airflow generated by the fire A fire alarm is sent out to inform you.

  In addition, fire alarm firecrackers that report fires due to arson, etc., and signal detonators that use a signal detonator in the fire detection section to collect the bursting sound caused by the operation of the signal detonator and determine the location of the fire. A fire monitoring system has also been proposed.

Japanese Patent Laid-Open No. 2007-11828 JP-A-8-202960 JP 2007-115073 A

  However, in such a conventional home fire alarm, depending on the location of the fire in the room being monitored, it takes some time for the fire alarm to detect a fire and issue a fire alarm. It takes. For example, when a fire occurs in the corner of the room being monitored, the fire alarm is activated by receiving the thermal airflow from the fire at a stage where the fire has expanded to some extent, and even if a fire is noticed, it takes time for initial fire extinguishing. There is.

  To solve this problem, the place where a fire may occur in the monitored room is the place or equipment that uses fire or its vicinity, and the possibility of such a fire. If a fire alarm is installed at or near a place or equipment, it can operate at the initial stage of a fire and give a fire alarm.

  However, there are various places and equipment that may cause a fire, and placing fire alarms in a place or equipment in a house where there is a possibility of fire or in the vicinity of it is the number of fire alarms to be installed. Too many, and conventional fire alarms are not designed to perform local fire monitoring, such as places and equipment that may cause a fire, and are also a realistic solution because they are expensive. There is no way.

  In addition, fire alarm firecrackers are placed outdoors and explode due to a fire caused by arson and are informed to residents and neighbors, so large amounts of explosives are used to ensure sufficient sound volume. It is dangerous to monitor fires. In addition, the signal detonator type fire monitoring device performs fire monitoring in a warehouse or the like in which storage units are stacked in multiple stages, and is not assumed to be used for monitoring a fire in a house.

The present invention has been made in view of such problems, and has a simple structure and is inexpensive in cost, and is placed in a place where there is a possibility of fire such as in a house or in the vicinity thereof, and is locally applied. An object of the present invention is to provide a fire alarm capable of detecting and notifying a simple fire.

The present invention is a fire alarm,
A detonator signal part that ignites by fire and burns explosively to generate a plosive sound,
A base with a fixed detonator signal,
A cover arranged to cover the outside of the detonator signal part fixed to the base in a sealed state;
A mounting fixing part provided behind the base;
It is provided with.

  Here, the detonator signal part is arranged so that the front end side of the lead wire drawn into the cover is exposed to the outside of the cover.

  Furthermore, a powder fire extinguisher is accommodated inside the cover, and the cover is pulverized by the bursting of the detonator signal part so that the powder fire extinguisher can be scattered.

The attachment fixing part provided behind the base includes a thumbtack or an adhesive sheet. Further, a plurality of detonator signal portions may be provided.

  According to the fire alarm device of the present invention, a detonator signal part using fireworks, for example, fireworks fireworks that ignite due to fire and burn explosively and generate a plosive sound is sealed on the outside. The cover is covered and fixed to the place where the fire is monitored with the mounting fixing part provided behind the base.When receiving heat from the fire, the fireworks structure fireworks that make up the detonator signal part are It ignites and explodes, and a large burst sound informs the occurrence of a fire.

  In addition, by arranging the lead wire leading out from the detonator signal part into the cover so that it is exposed to the outside of the cover, in the unlikely event that a fire occurs at the installation location, It can be ignited early and a fire can be notified by the operation of the detonator signal part.

  In addition, powder extinguishing agent is stored inside the cover, and the cover is crushed by bursting of the detonator signal part so that powder extinguishing agent can be scattered, so even if you use explosives for the detonator signal part, Fire extinguishing agent is sprayed on the monitoring area by bursting operation of the part, and the initial fire is surely suppressed and extinguished. Prevents the operation of the fire from causing fire.

  In addition, since the cover is disposed so as to cover the outside of the detonator signal portion fixed to the base in a sealed state, it is possible to reliably prevent the explosive provided in the detonator signal portion from getting wet and causing malfunction.

  In addition, because a thumbtack or adhesive sheet is provided on the mounting and fixing part, various stoves that may cause a fire, places where heat sources such as gas stoves and fire are used, places where fire is used due to smoking, etc. It is possible to easily monitor the fire locally.

In addition, by providing a plurality of detonator signal sections, it is possible to reliably notify the occupant of the occurrence of a fire when activated by a fire.

Explanatory drawing which showed one Embodiment of the fire alarm detector by this invention Explanatory drawing showing an arrangement example of fire alarms according to the present invention for a house Explanatory drawing which showed other embodiment of the fire alarm by this invention which accommodated the powder fire extinguisher in the cover Explanatory drawing which showed other embodiment of the fire alarm by this invention which provided the adhesive sheet in the attachment fixing | fixed part. Explanatory drawing which showed other embodiment of the fire alarm by this invention which provided two detonator signal parts. Explanatory drawing which showed other embodiment of the fire alarm by this invention using a laminate cover. Assembly exploded view of the fire alarm in Figure 6 Explanatory drawing which showed other embodiment of the fire alarm by this invention which accommodated the powder fire extinguisher in the laminate cover

  FIG. 1 is an explanatory view showing an embodiment of a fire alarm detector according to the present invention. FIG. 1 (A) is a front view, FIG. 1 (B) is a cross section, and FIG. 1 (C) is a plan view.

  As shown in FIG. 1, a fire alarm device 10 of the present invention has a detonator signal portion 14 that is ignited by a fire and explosively burns on a disc-shaped base 12 to generate a plosive sound. The cover 16 is disposed so as to cover the outside of the detonator signal portion 14 fixed to the base 12 in a hermetically sealed state, and the lower end surface of the periphery of the cover 16 is fixed to the base 12 by adhesion or welding. An attachment fixing portion 18 is provided behind the base 12, and a thumbtack 18a is provided in the present embodiment. The thumbtack 18a can be easily attached and fixed to a device to be monitored or a wall surface in the vicinity thereof.

  The detonator signal unit 14 uses a firecracker structure known as a firework that produces an explosion sound. For example, it is assumed that the detonator signal section 14 conforms to the legal standards of firecrackers, the outer diameter of the paper tube is 4 mm or less, the explosive 0.005 g or less, and the conductor 20 is drawn out. Thereby, the danger level of the detonator signal part 14 using gunpowder is equivalent to toy fireworks, and it is possible to ensure safety when installing the fire alarm device 10 of the present invention in a house.

  The conducting wire 20 drawn out from the detonator signal part 14 is drawn out through a hole in the conducting wire support part 22 formed at the upper center of the cover 16 and is arranged so that the tip side of the conducting wire 20 is exposed to the outside of the cover 12. . The exposed portion of the conducting wire 20 is pulled out from the conducting wire support portion 22 and sprayed with, for example, a resin coating and thinly coated with a resin to provide a moisture-proof structure so that the exposed portion of the conducting wire 20 is moist and difficult to ignite. To prevent that.

  The cover 16 houses the detonator signal part 14 in a sealed structure to prevent explosives from moisture. However, the cover 16 has a V-shaped groove on the upper surface of the cover 16 so that it can be opened when it ignites and explodes. 24 is formed in a cross shape. By forming the V-shaped groove 24 in this manner, the upper surface of the cover 16 in which the V-shaped groove 24 is formed breaks and opens to the outside in response to a rapid increase in internal pressure due to the explosion of the detonator signal portion 14. It is possible to blow out the blast above the cover 16 without scattering the air.

  Here, the size of the fire alarm device 10 is about 3 centimeters in outer diameter, and about 1 centimeter in height excluding the attachment fixing portion 18.

  FIG. 2 is an explanatory view showing an arrangement example of fire alarms according to the present invention for a house. As shown in FIG. 2, the house 26 is divided into, for example, a kitchen, a living room, a children's room, a bedroom, and a staircase. Here, as a place or equipment using a fire that may cause a fire in a room to be monitored by the fire alarm 10 of the present invention, for example, a gas range 28, a range hood 30, There are a heater 32 and a garbage can 34, a TV 36 and a garbage can 34 in the living room, and a small heater 38 and a dust can 34 in the children's room and bedroom.

  Thus, the fire alarm device 10 of the present invention is placed in a place, equipment, or the vicinity where a fire that may cause a fire is used. For example, the fire alarm 10 is arranged on the wall surface in the vicinity of the gas range 28 and the range hood 30 in the kitchen, and the fire alarm 10 is directly arranged on each of the heater 32 and the garbage bin 34.

  In the living room, the fire alarm 10 is directly arranged in each of the television 36 and the trash can 34. In the children's room and bedroom, the fire alarm 10 is directly arranged in each of the small heating device 38 and the garbage bin 34. In the bedroom, when there is a smoker, the fire alarm 10 is arranged on the wall surface near the bed.

  On the other hand, the staircase is not a place where fire is used, but a fire alarm 10 is provided in case of a failure. Furthermore, since there is a possibility of a fire due to electric leakage or the like on the second floor ceiling of the house 26, the fire alarm 10 is arranged in a place where the electric wire on the back of the ceiling passes.

  In FIG. 2, the case where the fire alarm 10 is disposed in the place where the fire of the house 26 is used, equipment, or all the vicinity thereof is taken as an example. In both cases, it is a realistic measure to arrange the fire alarm device 10 by narrowing the number of places to several places. In particular, it can be said that it is effective to preferentially provide in a place that is not visible in everyday life, for example, an outlet or the like that is always used by connecting many plugs.

  The operation when the fire alarm 10 is arranged as shown in FIG. 2 is as follows. For example, if a fire breaks out due to a cigarette butts thrown into the trash can 34 in the living room during sleep, the fire alarm 10 disposed in the trash can 34 is shown in FIG. The tip portion of the conducting wire 20 exposed outside the cover 16 is ignited by receiving a flame due to fire, and the combustion of the conducting wire 20 ignites the explosive of the detonator signal unit 14 housed in the cover 16, and the detonator signal unit. 14 explodes and opens the cover 16, generating a loud explosion.

  For this reason, the resident who is sleeping in the bedroom awakens by listening to the explosion sound of the fire alarm 10 that occurred in the living room on the first floor, and confirms the situation of the living room by knowing that an abnormality has occurred. In this case, instead of issuing a fire alarm at the stage where the fire spreads so that smoke spreads throughout the living room as in a conventional residential fire alarm, the initial stage of the local fire where the trash can 34 has started to burn. Since the fire alarm 10 is activated, it is possible to confirm the site before the fire spreads and to extinguish the fire reliably.

  In addition, when a sudden explosion is heard during sleep, it may be difficult to recognize that the fire alarm 10 has been activated immediately. In general, if you hear a loud explosion while sleeping, you often take action to listen to what happens next, and then take the next action if nothing happens. And there is a possibility that the discovery of the fire will be delayed. In order to solve such a problem, it is preferable to use at least two fire alarms 10 of the present invention in the same place.

  In this way, when two fire alarms 10 are arranged in the same place, for example, in the trash can 34 in the living room, the first one is activated by the fire and an explosion sound is generated. Make a sound. For this reason, the resident who wakes up after listening to the first explosion will continue to listen to the second explosion and behave swiftly with confidence that the second explosion is a fire. It becomes possible. Alternatively, three fire alarms 10 may be arranged at the same place so that three explosions are generated.

  FIG. 3 is an explanatory view showing another embodiment of a fire alarm device according to the present invention, and is characterized in that a powder fire extinguisher is housed in a cover.

  As shown in FIG. 3, the fire alarm 10 includes a base 12, a detonator signal unit 14, a cover 16, and an attachment fixing unit 18, and this point is the same as the embodiment of FIG. In that case, the powder fire extinguisher 42 is accommodated inside the cover 16. As the powder fire extinguishing agent 42, an ABC type corresponding to a normal fire A such as wood, paper, and fiber, a fire B of oil such as kerosene and gasoline, and an electric fire C such as a switchboard and an outlet is used. Of course, it may be a powder fire extinguisher which is a single ABC or a combination of the two.

  By storing the powder fire extinguisher 42 in the cover 16 in this way, when the detonator signal part 14 ignites and explodes due to a fire, the cover 16 is opened by the explosion and the powder fire extinguisher 42 is ejected to the outside. For example, in a narrow place such as a garbage can, the fire extinguishing agent 42 can be sprayed in the garbage can to suppress the fire.

  In addition, the explosion due to the ignition of the detonator signal part 14 generates a flame in a short time with the combustion of the explosive. However, since the powder extinguishing agent 42 is diffused and ejected, the detonator signal is caused by the presence of the powder extinguishing agent. It is possible to reliably prevent the flame caused by the explosion of the portion 14 from causing a fire.

  FIG. 4 is an explanatory view showing another embodiment of the fire alarm according to the present invention, and this embodiment is characterized in that an adhesive sheet is provided on the mounting fixing portion. As shown in FIG. 4, the fire alarm 10 includes a base 12, a detonator signal unit 14, a cover 16, and an attachment fixing unit 18, and this point is the same as the embodiment of FIG. In this case, an adhesive sheet 46 is provided as an attachment fixing portion on the back side of the base 12. By providing the adhesive sheet 46 in this way, it can be used when the fire alarm 10 is directly placed in a place where the thumbtack 18a shown in FIG.

  Note that the fire alarm 10 may be mounted and fixed by a method other than the thumbtack 18a of FIG. 1 or the adhesive sheet 42 of FIG. Absent.

  FIG. 5 is an explanatory view showing another embodiment of a fire alarm device according to the present invention. In this embodiment, two detonator signal sections are provided.

  As shown in FIG. 5, the fire alarm device 10 includes a base 12, a cover 16, and an attachment fixing portion 18, and this point is the same as the embodiment of FIG. 1, but in this embodiment, Two detonator signal portions 14 are arranged on the base 12 and fixed with an adhesive, and a cover 16 is arranged so as to cover the outside of the two detonator signal portions 14 fixed to the base 12 in a sealed state.

  The conductors 20 are drawn out from the two detonator signal parts 14, respectively, and drawn out through holes to the conductor support part 22 formed at the upper center of the cover 16, and the respective tips are exposed to the outside, and the exposed parts are sprayed with resin paint. A thin resin coating is applied to create a moisture-proof structure.

  In the fire alarm device 10 provided with the two detonator signal portions 14 as described above, if the two detonator signal portions 14 are ignited and explode via the lead wire 20 due to a fire, and if they explode at the same time, the implementation of FIG. An explosion volume approximately twice as large as that of the form is generated, and it is possible to reliably notify the occurrence of a fire even if the occupant is away.

  Moreover, when the two detonator signal parts 14 explode in order, explosion sound is generated twice in succession, and the occupant can be surely notified of the occurrence of the fire. In addition, in order to emit explosion sound twice with a time shift, the lengths of the conductors 20 used for the two detonator signal portions 14 are set to different lengths. Alternatively, three detonator signal sections 14 may be provided, and the length of the conducting wire 20 used for each may be different, so that a three-shot operation in which explosion sound is generated three times in succession may be used.

  Further, in the embodiment of FIG. 5 as well, in the same way as the embodiment of FIG. 3, a powder fire extinguisher may be accommodated in the cover 16, and as in the embodiment of FIG. May be used.

  6 and 7 are explanatory views showing another embodiment of a fire alarm according to the present invention, and this embodiment is characterized by using a laminate cover. 6A is a front view, FIG. 6B is a cross section, FIG. 6C is a plan view, FIG. 6D is a side view, and FIG. 7 is an exploded view thereof. .

  As shown in FIGS. 6 and 7, in the fire alarm device 10 of the present embodiment, a detonator signal part 14 having a firecracker structure is disposed on a rectangular base 12 and fixed thereto, and the detonator signal part 14 is fixed. A laminate cover 48 in which a detonator storage portion 48a is formed of a film material is disposed on the base 12 and its periphery is bonded and fixed.

  The conductor 20 is drawn out from the detonator signal part 14, and the conductor 20 is drawn out through the hole of the detonator storage part 48 of the laminate cover 48, and is disposed outside the cover in the longitudinal direction of the detonator storage part 48. The exposed conductor 20 has a moisture-proof structure with a thin resin coating by spraying a resin paint or the like. Further, an adhesive sheet 46 that functions as a mounting and fixing part is disposed on the back surface of the base 12.

  The fire alarm 10 using such a laminate cover 48 has an extremely simple structure in which the detonator signal portion 14 is fixed on the base 12 and is wrapped and sealed with the laminate cover 48. The detonator signal part 14 is fixed to a base sheet in which a plurality of bases 12 are continuously provided in one direction, and a laminate sheet in which a laminate cover 48 is continuously provided in one direction is covered and fixed thereto. It is possible to take a manufacturing method in which the fire alarms 20 are separated from each other, and it is possible to greatly reduce the unit price of the fire alarm 10 by obtaining high mass productivity.

  FIG. 8 is an explanatory view showing another embodiment of a fire alarm device according to the present invention, and this embodiment is characterized in that a powder fire extinguisher is housed in the same laminate cover as FIG.

  As shown in FIG. 8, the fire alarm 10 includes a base 12, a detonator signal unit 14, a laminate cover 48, and an adhesive sheet 46. This point is the same as the embodiment of FIG. , The powder fire extinguishing agent 42 is accommodated in the laminate cover 48, and the powder fire extinguishing agent 42 is, for example, an ABC type or a combination of any one or two.

  By storing the powder fire extinguisher 42 in the laminate cover 48 in this way, when the detonator signal part 14 is ignited and explodes due to a fire, the powder fire extinguisher 42 is ejected to the outside, and the powder fire extinguisher 42 is set to be monitored. It is possible to suppress fire extinguishing by spraying, and it is possible to reliably prevent the fire caused by the explosion of the detonator signal part 14 from causing fire due to the presence of the powder extinguishing agent 42.

The present invention is not limited to the above-described embodiment, includes appropriate modifications without impairing the object and advantages thereof, and is not limited by the numerical values shown in the above-described embodiment.

10: Fire alarm 12: Base 14: Detonator signal part 16: Cover 18: Mounting fixing part 18a: Thumbtack 20: Fire wire 22: Fire wire support part 24: V groove 46: Adhesive sheet 48: Laminate cover 48a: Detonator storage Part

Claims (5)

A detonator signal part that ignites by fire and burns explosively to generate a plosive sound,
A base on which the detonator signal part is fixed;
A cover arranged to cover the outside of the detonator signal part fixed to the base part in a sealed state;
An attachment fixing part provided behind the base part;
A fire alarm characterized by comprising.
2. The fire alarm device according to claim 1, wherein the detonator signal part is arranged so that a leading end side of a lead wire drawn into the cover part is exposed to the outside of the moisture-proof cover part.
The fire alarm according to claim 1, wherein a powder fire extinguisher is accommodated in the cover, and the cover is pulverized by bursting of the detonator signal part to allow the powder fire extinguisher to be scattered. Fire alarm.
2. The fire alarm according to claim 1, wherein the mounting and fixing portion provided behind the base portion includes a thumbtack or an adhesive sheet.
  The fire alarm device according to claim 1, wherein a plurality of the detonator signal portions are provided.

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